Regarding using 2 serial ports, I have had great success running two ports at different speeds using the 18F26K22. Sample coding below.
Tim.
Code:
INCLUDE "DT_INTS-18.bas" ; Base Interrupt System
INCLUDE "ReEnterPBP-18.bas" ; Include if using PBP interrupts
ASM
INT_LIST macro ; IntSource, Label, Type, ResetFlag?
INT_Handler RX1_INT, _SERIALIN1, PBP, no
INT_Handler RX2_INT, _SERIALIN2, PBP, no
INT_Handler TMR1_INT, _COUNTER, PBP, yes
endm
INT_CREATE ; Creates the interrupt processor
ENDASM
RCSTA1 = %11010000 ' Enable 9bit serial port & continuous receive
TXSTA1 = %01100100 ' Enable transmit, BRGH = 1
BAUDCON1.3 = 1 ' Enable 16 bit baudrate generator
SPBRGH1 = 0
SPBRG1 = B562500 ' 562500 Baud
RCSTA2 = %10010000 ' Enable serial port & continuous receive & parity
TXSTA2 = %00100100 ' Enable transmit, BRGH = 1
BAUDCON2.3 = 1 ' Enable 16 bit baudrate generator
SPBRGH2 = 1
SPBRG2 = B38400 ' 38400 Baud @ 54MHZ
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